Since there are Developer, Next, and Stable Opera versions available simultaneously, you can always check at http://blogs.opera.com/desktop/ to identify and download the latest of whichever type at any given time. Developer versions are "bleeding edge" with experimental features that come and go with each release; Next is feature-frozen, but is still being tested for instabilities and bugs; and Stable is the "final, released" version, for general consumption. Note that with the rapid release cycle, the version within each category may be auto-updated quite frequently. So, as @leushino notes, 20.0.1387.91 is the latest stable version - as of this hour, on 17 April.

@funksoulbro and @piter432, the OP asked for the "new latest opera" - that leaves out Old/Presto Opera. There's no need to bring your negativity into this thread, even in a sarcastic way... it serves no constructive purpose. Please stand down.

12.16 IS the latest Opera. After that, the company tossed out every principle they had that made the Presto version good to chase after the dumbed-down mainstream market - which is an utterly futile exercise.

12.16 IS the latest Opera. After that, the company tossed out every principle they had that made the Presto version good to chase after the dumbed-down mainstream market - which is an utterly futile exercise.

I come here to try to help users by giving honest, direct answers to their questions. Apart from repeatedly trying to start flame wars, why are you here? Don't you have something more important to do?

The latest version of Opera web-browser is 12.16. The latest decent version is 12.14 (12.15+ has been worsen through new rendering bugs)
Technically speaking, Opera 15+ is not browser, it's shell of Chromium/Blink.

The latest version of Opera web-browser is 12.16. The latest decent version is 12.14 (12.15+ has been worsen through new rendering bugs)
Technically speaking, Opera 15+ is not browser, it's shell of Chromium/Blink.

This is FALSE information. Only in your fevered mind is Opera 12.16 the latest Opera version. It is the LAST Presto Opera version... PERIOD. The LATEST Opera version is 20.0.1387.91